Clevis



(No Model.)

A. D. FORBES.

GLEVIS.

Patented Mar. 24, 1885.

(W/LT 172%272122: 6 232 m 927% imwzw UNITED STaTns PATENT OFFICE.

ALEXANDER D. FORBES, OF ROCKFORD, ILLINOIS.

CLEVIS.

SPECIFICATION forming part of Letters Paten't No. 314,4:43, dated March24, 1885,

Application filed October 22, 185:3. (No model.)

To all whom it may concern.-

Be it known that I, ALEXANDER D. FORBES, a citizen of the United States,residing in the city of Rockford, in the county of Winnebago and Stateof Illinois, have invented new and useful Improvements in Olevises, ofwhich the following is a specification.

This invention relates to that class of clevises employed mainlyinconnection with plowbeams; and it consists in the peculiar construction,arrangement, and combination of parts, as more fully hereinafter setforth, and pointed out in the claim.

Figure 1 is an isometrical representation of a clevis embodying myinvention. Fig. 2 is a side elevation.

In the figures, A represents the forward end portion of a plow-beamrectangular in section.

At B is represented that portion of a clevis usually known asbeam-plates, having an arm, a, which extends in the lengthwise directionof the plow-beam rearward, and are fixed thereto by means of screw-boltsb, passed transversely through the parts. The forward ends 0 of theseplates extend forward of the beam, and theirprojecting ends are enlargedin depth, in this instance extending both above and below the beam. Theextreme forward ends of these beam-plates are produced on an inclinerelatively with the lengthwise central l1orizontal axis of the platesand of the plow-beam, having a downward, forward, and an upward rearwardinclination relatively therewith. These enlarged inclined forward endsof the beam-plates are provided with a series of holes, (1, in a lineparallel with their forward inclined edges, and are designed to receivea pin or pins to connect a transverse clevis with the beam-plates.

At C is represented a transverse clevis having its front bar providedwith a series of holes, 6, designed to receive the pin of a clevisemployed to connect the evener with the transverse clevis. Thistransverse clevis is provided with ears h, extending rearward from itsrear edge in position to engage the vertical sides of the beam-plates,and these cars are provided with a stud pin, is, projecting at rightangles with the face of the ears. These stud-pins are of aproper size toenter the holes 61 in the beam-plates snugly, and their distance fromthe rear of the front bar of the clevis is such that when in place inthe beamplates the rear edge of the transverse clevis will engage theinclined forward edge of the beam-plates, as clearly shown in theelevation in Fig. 2, and prevent the transverseclevis from descendingbelow a horizontal position relatively with a transverse plane passingthrough the lengthwise central axis of the beam-plates, but in such amanner as to permit of a limited upward movement of the transverseclevis, as shown in the dotted lines in Fig. 2.

At a are represented cotters passed through holes bored in thestud-pins, which serve to hold the transverse clevis in connection withthe beam-plates, and which when removed will permit the clevis to beplaced in any of the holes in the beam plates to vary the runningdepthof the plow.

In this construction I have made the transverse clevis capable of beingreversed, in which its long arm may be placed on either side, by whichmy improved clevis is capable of use on right or left hand plows.

I claim as my invention 7 The combination, with the side plates of aclevis having a series of coincident apertures, of a transverse clevishaving rearwardly-extending arms provided with pins projecting at rightangles therefrom in the same lateral direction, as and for the purposesset forth.

ALEXANDER D. FORBES.

\Vitnesses:

J noon BEHEL, A. O. BEHEL.

